https://intercom.help/expedia-free-cancellation/en/articles/10895688-expedia-cancellation-is-expedia-really-free-cancellation
https://community.ring.com/conversations/welcome-to-the-ring-community/what-is-the-cheapest-day-to-fly-on-jetblue/67e087ceb7ace50024139bb0
https://community.ring.com/conversations/ring-home-plan/british247what-day-is-the-cheapest-to-book-british-airways/67e0873cb7ace50024139423
